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Finding the Third Proportional to 7,064 and 11,316

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Solution

The third proportional to 7,064 and 11,316 is: 18,127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,064 : 11,316 = 11,316 : x
  2. Step 2: Convert to fraction form
    7,064/11,316 = 11,316/x
  3. Step 3: Cross multiply
    7,064x = 11,316 × 11,316
  4. Step 4: Simplify right side
    7,064x = 128,051,856
  5. Step 5: Solve for x
    x = 128,051,856/7,064
  6. Step 6: Final answer
    x = 18,127.39

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.